Kelly recently launched an astonishing attack on the social networking website against Luke - insisting he is the 'worst thing' that ever happened to her.
The 26-year-old, who broke up with Luke in July, said she had only come home for Christmas to see him but all he did was get with other people behind her back and use her for her money.
But now it seems to have all got a bit too much for the daughter of rocker Ozzy Osbourne, who is leaving the social networking website for a bit while she copes with how 'stupid' he has made her look.
She tweeted today: 'Don't think I have ever felt so stupid he made a fool of me going to be off Twitter for a while never felt heart brake [sic] like this in my life.'